The ends of two wires of lengths l=20 cm, and semicircular sections of radii D=2 cm, and resistivities p₁ = 1.69x10-8m the first, and P2 8.85x10-8m the second; are joined to form a wire of circular section. Find the resistance between the ends of this wire.
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![cm, and resistivities P₁
The ends of two wires of lengths l=20 cm, and semicircular sections of radii D=2
8.85x10-8m the second; are joined to form a wire of circular section.
Find the resistance between the ends of this wire.
1.69x10-8m the first, and P2
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